Oliver Platt Dr. Daniel Charles Actor S. Epatha Merkerson Sharon Goodwin Actor Nick Gehlfuss Dr. Will Halstead Actor Yaya DaCosta Nurse April Sexton Actor Colin Donnell Dr. Connor Rhodes Actor Brian Tee Dr. Ethan Choi Actor Torrey DeVitto Dr. Natalie Manning Actor Rachel DiPillo Dr. Sarah Reese Actor Gregg Henry Dr. David Downey Guest Star Marlyne Barrett Maggie Lockwood Guest Star Julie Marie Berman Dr. Sam Zanetti Guest Star Susie Abromeit Zoe Roth Guest Star Lochlyn Munro Jack Cooper Guest Star Cynthia Addai-Robinson Dr. Vicki Glass Guest Star Patti Murin Nina Shore Guest Star Chance Bone Tim Anderson Guest Star Tosin Morohunfola Dr. Vorspan Guest Star Dick Wolf Executive Producer Matt Olmstead Executive Producer Michael Brandt Executive Producer Derek Haas Executive Producer Danielle Gelber Executive Producer Peter Jankowski Executive Producer Joe Chappelle Executive Producer